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<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      const info = {
        age: 20,
      };
      // 批量设置
      Object.defineProperties(info, {
        name: {
          value: "jack",
          writable: true,
        },
        hobby: {
          value: "html",
          enumerable: true,
        },
        num: {
          value: 100,
          configurable: true,
        },
      });
    </script>
  </body>
</html>
